Antigorite and Calcite Physical Properties

Antigorite

Calcite

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1 Physical Properties

1.1 Tenacity

Not Available

Brittle

1.2 Solubility

Not Available

Soluble

1.3 Durability

Not Available

1.4 Specific Gravity

2.58-2.802.67-2.73

1 7.18

1.5 Fracture

Conchoidal, Brittle, Metallic, Conchoidal, Handbook of mineralogy (2001)

Conchoidal, ConchoidalArthur Thomas, Gemstones (2009), ConchoidalArthur Thomas, Gemstones (2009), Brittle, Conchoidal

1.6 Cleavage

{001} Good

Perfect on [10 1 1] three directions with angle of 74° 55

1.7 Mohs Hardness

5-5.53

2 10

1.8 Chemical Composition

(Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)

CaCO 3Ulrich Henn and Claudio C.

Antigorite and Calcite Chemical Formula

While comparing Antigorite and Calcite physical properties, the important data you should know is its chemical composition. Since chemical formula defines the molecular structure of the crystal, most of the physical properties like color, tenacity, solubility are governed by Antigorite and Calcite chemical formula.

Chemical formula of Antigorite- (Mg,Fe2+ ) 3Si 2O 5(OH) 4Anthony et al , Handbook of mineralogy (2001)
Chemical formula of Calcite- CaCO 3Ulrich Henn and Claudio C.

Compare Green Gemstones

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Antigorite Vs Augite

Antigorite and Calcite Specific Gravity

Another important criteria for qualitative analysis of gemstones is Antigorite and Calcite Specific gravity. Specific gravity is the relative density of a gemstone compared with respect to density of water. Gemologists use Antigorite and Calcite Optical Properties during the identification of gemstone. Specific gravity of Antigorite is 2.67-2.73 whereas that of Calcite is 2.67-2.73.